Scarecrow's Secret

There's a secret about Dr Jonathan Crane, otherwise known as Scarecrow. He has a family. A son and a daughter, Caralyn and Daniel Crane. After his wife, Evalyn Gordon-Crane, was killed, he became obsessed with keeping his children away from certain people and places. Daniel was a little older than Caralyn, so he let him go a few places, but he was very overprotective over Caralyn. So what happens when she befriends Joker and Harley Quinn's daughter? And the Riddlers son...